10451440642 has 8 divisors (see below), whose sum is σ = 16599346956. Its totient is φ = 4918324992.

The previous prime is 10451440639. The next prime is 10451440661. The reversal of 10451440642 is 24604415401.

It can be written as a sum of positive squares in 2 ways, for example, as 9803178121 + 648262521 = 99011^2 + 25461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10451440642² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153697623 + ... + 153697690.

Almost surely, 2^10451440642 is an apocalyptic number.

10451440642 is a deficient number, since it is larger than the sum of its proper divisors (6147906314).

10451440642 is a wasteful number, since it uses less digits than its factorization.

10451440642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307395332.

The product of its (nonzero) digits is 15360, while the sum is 31.

The spelling of 10451440642 in words is "ten billion, four hundred fifty-one million, four hundred forty thousand, six hundred forty-two".